PL EN


Preferences help
enabled [disable] Abstract
Number of results
2007 | 112 | 2 | 295-300
Article title

Spin-Polarized Current in Coulomb Blockade and Kondo Regime

Authors
Content
Title variants
Languages of publication
EN
Abstracts
EN
Spin-polarized electron transport through a single-level quantum dot attached to ferromagnetic and non-magnetic leads is studied with the use of the non-equilibrium Green function technique. Current polarization is investigated in dependence on parameters which characterize the device: the lead's polarization, a position of the dot energy level compared to the Fermi level in electrodes, and the Zeeman splitting of the dot level in an external magnetic field applied to the dot. Calculations were performed in two transport regimes: the Coulomb blockade regime with correlation effects treated within the Hartree-Fock approximation and the Kondo regime with a more rigorous approach to many-body effects at low temperatures.
Keywords
EN
Contributors
author
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
References
  • 1. T.F. Santos, J.S. Moodera, Phys. Rev. B, 69, 241203, 04
  • 2. A. Folk, R.M. Potok, C.M. Marcus, V. Umansky, Science, 299, 679, 03
  • 3. J. Wróbel, T. Dietl, A. Lusakowski, G. Grabecki, K. Fronc, R. Hey, K.H. Ploog, H. Shtrikman, Phys. Rev. Lett., 93, 246601, 04
  • 4. Leo Yu, H.C. Huang, O. Voskoboynikov, Superlatt. Microstruct., 34, 547, 03
  • 5. Y. Meir, N.S. Wingreen, P.A. Lee, Phys. Rev. Lett., 70, 2601, 93
  • 6. F.M. Souza, J.C. Egues, A.P. Jauho, Phys. Rev. B, 75, 165303, 07
  • 7. R. Świrkowicz, M. Wilczyński, J. Barnaś, J. Phys., Condens. Matter, 18, 2291, 06
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv112n227kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.